CN203704480U - Air-cooled cold and hot water unit - Google Patents
Air-cooled cold and hot water unit Download PDFInfo
- Publication number
- CN203704480U CN203704480U CN201320704545.1U CN201320704545U CN203704480U CN 203704480 U CN203704480 U CN 203704480U CN 201320704545 U CN201320704545 U CN 201320704545U CN 203704480 U CN203704480 U CN 203704480U
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- refrigerant
- water
- air
- pipe
- heat pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000003507 refrigerant Substances 0.000 claims abstract description 144
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000002826 coolant Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 3
- 102000010637 Aquaporins Human genes 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Other Air-Conditioning Systems (AREA)
Abstract
An air-cooled cold and hot water unit comprises a compressor, an airside heat exchanger, a throttling component and a water side heat exchanger all sequentially connected, wherein the water side heat exchanger is provided with a water outlet, a water inlet, a first refrigerant opening and a second refrigerant opening; a water inlet pipe and a water outlet pipe are in fluid communication with the water outlet and the water inlet respectively; a first refrigerant pipe and a second refrigerant pipe are in fluid communication with the first refrigerant opening and the second refrigerant opening respectively; the air-cooled cold and hot water unit further comprises a refrigerant detection device and an isolating device; the refrigerant detection device comprises a first refrigerant detection tool; the first refrigerant detection tool is arranged on the water outlet pipe and used for detecting whether a refrigerant is in the water outlet pipe; the isolating device comprises a first electromagnetic valve and a second electromagnetic valve; the first electromagnetic valve and the second electromagnetic valve are installed in the first refrigerant pipe and the second refrigerant pipe respectively and used for controlling opening-sealing of the first refrigerant pipe and the second refrigerant pipe. The air-cooled cold and hot water unit can rapidly detect whether refrigerant leakage occurs and can rapidly isolate a small part of a water side refrigerant pipe from a complete machine system.
Description
Technical field
The utility model relates in general to air-conditioning technical field, more specifically, relates to a kind of air-to-water heat pump.
Background technology
Air-to-water heat pump (Air-Cooled Heat Pump Unit) has the dual-use function of summer cooling water and Winter heat supply water.The air-to-water heat pump of prior art generally includes compressor, cross valve, air-side heat exchanger, expansion valve, water-side heat etc.Can there is water-side heat earial drainage in the air-to-water heat pump of prior art.Water-side heat earial drainage is one of the most serious fault, because once water-side heat leaks, refrigerant and water can interpenetrate, if water enters in refrigerant pipe, whole refrigerant pipeline system cannot be used, once and compressor water inlet will be burnt compressor, even do not burn in the short time, compressor also cannot use.The air-to-water heat pump of prior art is all by detection system pressure at expulsion, temperature, compressor current, and anti-freezing pressures etc. carry out reponse system fault.But in the situation that there is water-side heat leakage accident, only, when coolant leakage is to a certain extent time, these protective devices just can react machine system fault, and by system-down, but refrigerant can continue to leak, and the while water of water side will blow back into refrigerant pipe.At this moment system pipeline can not re-use, and simultaneously compressor is scrapped because of water inlet.
Therefore, need a kind ofly there is fast detecting water side refrigerant earial drainage and by the air-to-water heat pump of the ability of the current of water side and complete machine refrigerant pipeline isolation of system.
Utility model content
The purpose of this utility model is just to provide a kind of air-to-water heat pump with fast detecting coolant leakage and isolating power.
Above-mentioned purpose is to realize by following air-to-water heat pump, described air-to-water heat pump comprises the compressor, air-side heat exchanger, throttle part and the water-side heat that connect successively, described water-side heat has delivery port and water inlet and the first refrigerant mouth and the second refrigerant mouth, water inlet pipe and outlet pipe respectively fluid are communicated with described delivery port and described water inlet, and the first refrigerant pipe and the second refrigerant pipe respectively fluid are communicated with described the first refrigerant mouth and described the second refrigerant mouth; Described air-to-water heat pump also comprises: refrigerant checkout gear, and described refrigerant checkout gear comprises: the first refrigerant testing tool, is arranged on described outlet pipe, for detection of whether there being refrigerant in described outlet pipe; And spacer assembly, described spacer assembly comprises: the first magnetic valve and the second magnetic valve, be arranged on respectively in described the first refrigerant pipe and described the second refrigerant pipe, for controlling opening and sealing of described the first refrigerant pipe and described the second refrigerant pipe.
Whether the first refrigerant testing tool by described refrigerant checkout gear can fast detecting there is coolant leakage, and in the situation that there is coolant leakage, can isolate fast fraction water side refrigerant pipe and machine system by the first magnetic valve and second magnetic valve of described spacer assembly.So no matter how water side refrigerant leaks, and the current of water side cannot enter complete machine refrigerant pipeline system, more cannot enter compressor, only need to change like this water-side heat of leakage in the time of maintenance.
In a preferred embodiment, described refrigerant checkout gear comprises the second refrigerant testing tool, is arranged on described water inlet pipe, for detection of whether there being refrigerant in described water inlet pipe.Especially favourable in the time that described air-to-water heat pump is fabricated structure, whether the water-side heat that can detect in upstream units there is coolant leakage.
In a preferred embodiment, described air-to-water heat pump also comprises device for drying and filtering.In anti-like this locking system, cause ice berg, and prevent etching apparatus and pipeline inner surface.
In a preferred embodiment, described air-to-water heat pump also comprises gas-liquid separator.Can prevent like this compressor generation liquid hammer.
In a preferred embodiment, described air-to-water heat pump also comprises cross valve.Hot water can be provided like this, realize the difunctional of cold water and hot water is provided.
In a preferred embodiment, described throttle part is electric expansion valve.Electronic expansion valve controls precision is high, be quick on the draw, operating mode is stable.
Brief description of the drawings
By the description of in the mode of embodiment, the utility model being carried out with reference to the following drawings, those skilled in the art can more clearly understand above-mentioned and other advantages of the present utility model, wherein:
Fig. 1 is the schematic diagram of the air-to-water heat pump of an embodiment of the present utility model.
Detailed description of the invention
It will be understood by those skilled in the art that following to the specific descriptions of embodiment of the present utility model just to abundant openly the utility model, and should not be construed as restriction scope of the present utility model; Scope of the present utility model is defined by the claims.
Fig. 1 is the schematic diagram of the air-to-water heat pump of an embodiment of the present utility model.Air-to-water heat pump 1 comprises the compressor 2, cross valve 3, air-side heat exchanger 4, throttle part 5 and the water-side heat 6 that connect successively.It will be understood by those skilled in the art that cross valve 3 is optional, in the situation that air-to-water heat pump 1 is single cooler, can not comprise cross valve.Refrigerant can be chlorodifluoromethane (R22).Although the air-to-water heat pump 1 shown in figure is monolithic construction, in other embodiments, air-to-water heat pump can be fabricated structure.Compressor 2 can be reciprocating compressor or screw compressor.Air-side heat exchanger 4 is air cooled condenser, it is using air as cooling medium, and refrigerant superheated vapor is progressively cooling in flow process in pipe, and air laterally skims over outside pipe forcing under effect of blower fan, take away refrigerant vapor liberated heat in pipe, and it is dispersed in surrounding environment.Air-side heat exchanger can adopt top-blown axial flow blower or side blown type blower fan.Throttle part 5 can be expansion valve, although an expansion valve is only shown in figure, air-to-water heat pump 1 can adopt the refrigeration expansion valve different from heating capacity of each arrangement to meet refrigeration and heat the demand of the different cold medium fluxes of circulation.In other embodiments, throttle part 5 can be single expansion valve, and the capillary of connecting in the time heating reaches the requirement of flow-control.In a preferred embodiment, throttle part 5 can be electric expansion valve or two-way heating power expansion valve.Electric expansion valve has advantages of that control accuracy is high, is quick on the draw, operating mode is stable.Air-to-water heat pump 1 can also comprise device for drying and filtering 7, for absorbing the moisture of refrigerant.Thereby in anti-locking system, cause ice berg, and prevent etching apparatus and pipeline inner surface.Device for drying and filtering 7 can exchange with the position of throttle part 5, can be connected between throttle part 5 and water-side heat 6 and also be connected between throttle part 5 and air-side heat exchanger 4.In addition, air-to-water heat pump 1 can also comprise gas-liquid separator 8, for by water outlet side heat exchanger 6, enter compressor 2 refrigerant vapor drop separation out, prevent that compressor 2 from liquid hammer occurring.
Water-side heat 6 can be shell and tube exchanger, plate type heat exchanger and double pipe heat exchanger, utilizes water and refrigerant to carry out heat exchange, thereby obtains cold water or hot water.Water-side heat 6 comprises water inlet 9 and delivery port 10, there are respectively water inlet pipe 11 and outlet pipe 12 and the two fluid connection, water enters water-side heat 6 from water inlet pipe 11 by water inlet 9, flow through the aquaporin (not shown) in water-side heat 6, flow out water-side heat 6 by delivery port 10, enter outlet pipe 12.Water-side heat 6 also comprises that the first refrigerant mouth 13 and the second refrigerant mouth 14, the first pipe refrigerant pipes 15 and the second refrigerant pipe 16 are communicated with the two fluid respectively.According to refrigeration or heating condition, the first refrigerant mouth 13 and the second refrigerant mouth 14 can be respectively refrigerant entrance and refrigerant exit, or refrigerant exit and refrigerant entrance, therefore, the first pipe refrigerant pipe 15 and the second refrigerant pipe 16 can be respectively that refrigerant enters pipe and refrigerant goes out to manage, or refrigerant exit and refrigerant entrance.Refrigerant enters pipe from refrigerant and enters water-side heat 6 by refrigerant entrance, flows through the refrigerant passage (not shown) in water-side heat 6, carries out heat exchange with the water in aquaporin, flows out water-side heat 6 by refrigerant exit, enters refrigerant and goes out pipe.
For fast detecting coolant leakage and isolation refrigerant, air-to-water heat pump 1 comprises refrigerant checkout gear and spacer assembly.In illustrated embodiment, described refrigerant checkout gear can comprise: the first refrigerant testing tool 17, is arranged on outlet pipe 12, for detection of whether there being refrigerant in outlet pipe 12; The second refrigerant testing tool 18, is arranged on outlet pipe 11, for detection of whether there being refrigerant in water inlet pipe 11.Described spacer assembly can comprise be arranged on that the first refrigerant pipe 15 and the second refrigerant pipe 16(refrigerant enter pipe and refrigerant goes out to manage) in the first magnetic valve 19 and the second magnetic valve 20, for controlling opening and sealing of the first refrigerant pipe 15 and the second refrigerant pipe 16.The form of the first refrigerant testing tool 17 and the second refrigerant testing tool 18 is not limit, as long as can detect the existence of refrigerant, for example, is R22 detector, or adopts fluorescence mode.For this reason, control mainboard (not shown) and can be provided with two magnetic valve ports for controlling respectively the first magnetic valve 19 and the second magnetic valve 20 switches, be also provided with two refrigerants and detect receiving port.In the time that the first refrigerant testing tool 17 and the second refrigerant testing tool 18 have detected coolant leakage, control mainboard feedback signal, for controlling complete machine shutdown, close the first magnetic valve 19 and the second magnetic valve 20 simultaneously, wait confirmation to be checked.Certainly, the second refrigerant testing tool 18 is optional, when especially air-to-water heat pump 1 is fabricated structure.
The operation principle of air-to-water heat pump 1 is described below.
After complete machine powering, the first magnetic valve 19 and the second magnetic valve 20 are opened, and compressor 2 is opened.First optional by the first refrigerant testing tool 17 and the second refrigerant testing tool 18() detect refrigerant whether exist.If refrigerant do not detected, unit normally moves.In the time that unit moves under cooling condition, referring to the solid line list arrow in Fig. 1, the high pressure refrigerant vapor that compressor 2 is discharged is optional through cross valve 3() after enter air-side heat exchanger 4, after condensation, refrigerant liquid becomes low pressure liquid after throttle part 5 throttlings, drying filter 7 dry (optional) again, through the second refrigerant pipe 16, from the second refrigerant mouth 14(, now the two enters pipe and refrigerant entrance for refrigerant) enter water-side heat 6, absorb therein after the heat of cold water, from the first refrigerant mouth 13 and the first refrigerant pipe 15(, now the two goes out pipe for refrigerant exit and refrigerant), pass through again cross valve 3, gas-liquid separator 8(is optional) get back to compressor 2, complete circulation.In the time that unit enters heating condition, referring to the dotted line list arrow in Fig. 1, the high pressure refrigerant vapor that compressor 2 is discharged is through cross valve 3, through the first refrigerant pipe 15, from the first refrigerant mouth 13(, now the two enters pipe and refrigerant entrance for refrigerant) enter water-side heat 6, heat hot water therein, itself be condensed into liquid simultaneously, from the second refrigerant mouth 14 and the second refrigerant pipe 16(, now the two goes out pipe for refrigerant exit and refrigerant), pass through again device for drying and filtering 7(optional), after throttle part 5 throttlings, become the liquid of low-pressure low-temperature, enter air-side heat exchanger 4, absorb therein the heat in surrounding air and be evaporated to refrigerant vapor, refrigerant vapor passes through cross valve 3 again, gas-liquid separator 8(is optional) after get back to compressor 2, complete circulation.Under refrigeration and heating condition, the flow direction of water is illustrated by solid line double-head arrow.
If detect that refrigerant exists; the first refrigerant testing tool 17 and the second refrigerant testing tool 18(are optional) feed back in time refrigerant detectable signal; can isolate at once fraction water side refrigerant pipe (i.e. the part between the first magnetic valve 19 and the second magnetic valve 20 and water-side heat 6 of the first refrigerant pipe 15 and the second refrigerant pipe 16) and machine system, can effectively protect.No matter how water side refrigerant leaks, and can not have influence on other any parts except water-side heat.In the time of maintenance, only need to change the water-side heat leaking like this, other machine systems can continue to use, and have both facilitated maintenance overhaul, save again the cost of maintenance.
Specific embodiment of the utility model has more than been described.In scope of the present utility model, can carry out various improvement, amendment to above-described embodiment.For example, can adopt various ways to combine feature of the present utility model.
Claims (6)
1. an air-to-water heat pump, comprise the compressor, air-side heat exchanger, throttle part and the water-side heat that connect successively, described water-side heat has delivery port and water inlet and the first refrigerant mouth and the second refrigerant mouth, water inlet pipe and outlet pipe respectively fluid are communicated with described delivery port and described water inlet, and the first refrigerant pipe and the second refrigerant pipe respectively fluid are communicated with described the first refrigerant mouth and described the second refrigerant mouth;
It is characterized in that:
Described air-to-water heat pump also comprises:
Refrigerant checkout gear, described refrigerant checkout gear comprises: the first refrigerant testing tool, is arranged on described outlet pipe, for detection of whether there being refrigerant in described outlet pipe; With
Spacer assembly, described spacer assembly comprises: the first magnetic valve and the second magnetic valve, be arranged on respectively in described the first refrigerant pipe and described the second refrigerant pipe, for controlling opening and sealing of described the first refrigerant pipe and described the second refrigerant pipe.
2. air-to-water heat pump according to claim 1, is characterized in that, described refrigerant checkout gear also comprises the second refrigerant testing tool, is arranged on described water inlet pipe, for detection of whether there being refrigerant in described water inlet pipe.
3. air-to-water heat pump according to claim 1 and 2, is characterized in that, described air-to-water heat pump also comprises device for drying and filtering.
4. air-to-water heat pump according to claim 1 and 2, is characterized in that, described air-to-water heat pump also comprises gas-liquid separator.
5. air-to-water heat pump according to claim 1 and 2, is characterized in that, described air-to-water heat pump also comprises cross valve.
6. air-to-water heat pump according to claim 1 and 2, is characterized in that, described throttle part is electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704545.1U CN203704480U (en) | 2013-11-08 | 2013-11-08 | Air-cooled cold and hot water unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704545.1U CN203704480U (en) | 2013-11-08 | 2013-11-08 | Air-cooled cold and hot water unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203704480U true CN203704480U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320704545.1U Expired - Fee Related CN203704480U (en) | 2013-11-08 | 2013-11-08 | Air-cooled cold and hot water unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203704480U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121737A (en) * | 2014-08-13 | 2014-10-29 | 广东志高暖通设备股份有限公司 | Single cooling water source multi-on line unit |
| CN104132492A (en) * | 2014-08-13 | 2014-11-05 | 广东志高暖通设备股份有限公司 | Single-cold-water-source multi-split air conditioner machine |
| WO2020037901A1 (en) * | 2018-08-21 | 2020-02-27 | 珠海格力电器股份有限公司 | Unit, isolation device, and refrigerant leakage processing method and device |
| EP3591312A4 (en) * | 2017-02-28 | 2020-03-04 | Mitsubishi Electric Corporation | Apparatus using heat pump |
| CN111998473A (en) * | 2020-08-21 | 2020-11-27 | 南京佳力图机房环境技术股份有限公司 | Method for air-cooled cold and hot water unit to refrigerate in extreme cold environment and heat in extreme hot environment |
-
2013
- 2013-11-08 CN CN201320704545.1U patent/CN203704480U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121737A (en) * | 2014-08-13 | 2014-10-29 | 广东志高暖通设备股份有限公司 | Single cooling water source multi-on line unit |
| CN104132492A (en) * | 2014-08-13 | 2014-11-05 | 广东志高暖通设备股份有限公司 | Single-cold-water-source multi-split air conditioner machine |
| EP3591312A4 (en) * | 2017-02-28 | 2020-03-04 | Mitsubishi Electric Corporation | Apparatus using heat pump |
| WO2020037901A1 (en) * | 2018-08-21 | 2020-02-27 | 珠海格力电器股份有限公司 | Unit, isolation device, and refrigerant leakage processing method and device |
| CN111998473A (en) * | 2020-08-21 | 2020-11-27 | 南京佳力图机房环境技术股份有限公司 | Method for air-cooled cold and hot water unit to refrigerate in extreme cold environment and heat in extreme hot environment |
| CN111998473B (en) * | 2020-08-21 | 2022-08-09 | 南京佳力图机房环境技术股份有限公司 | Method for air-cooled cold and hot water unit to refrigerate in extreme cold environment and heat in extreme hot environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 |
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| CF01 | Termination of patent right due to non-payment of annual fee |